Scientists from Barcelona conducted a study to prove how tap water, as well as bottled water, affects the environment and human health. Barcelona was chosen for the research because it is a region with a high population density. The Sciencealert portal wrote about it.
One specialist emphasized that the research yielded double results. So, if all residents of Barcelona switch only to bottled water, production will cost US $ 83.9 million per year and will lead to the loss of 1.43 species of animals – due to the process of extracting and processing the necessary raw materials, as well as waste. And if everyone switches to tap water, the risk of bladder cancer increases: after treatment, such water contains a high level of trihalomethanes – substances in which three of the four hydrogen atoms of methane are replaced by halogen atoms.
It is noted that these are hypothetical situations and concern only Spain, but, in principle, this can be extended to any country and region. In any country, they drink both bottled and ordinary water.
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